Means for twisting and cabling yarns.



J. D. WHYTE. MEANS FOR TWISTING AND GABLING YARNS.

APPLIOATION FILED Nov. 9, 1909.

968,723. l Patented Aug.3o,191o.

..... \5 l--llllll J. D. WHYTE. MEANS POR TWISTING AND GABLING YARNS.

APPLIoATIoN FILED Nov. 9, 1909. 968,723. Patented Aug. 30, 1910.

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J D. WHYTB.

MEANS FOR TWISTING AND CABLING YARNS.

APPLIoA'rIoN FILED Nov. a. 1909.

.. 968,723. Patented Aug.3o,1910.

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MEANS FOR TWISTING AND GABLING YARNS.

APPLIGATION FILED Nov. s, 1909.

968,723. Patented Aug.3o,1910.

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l 1HE Nokkls PETERS co., wAsHlNcraN, n. c.

J. D. WHYTE. MEANS FOR TWISTING AND GABLING YARNS.

o l. l I APPLI ATION FILED NOV 9 1909 Patented Aug. 30,

5 SHEETS-SHEET 5.

1HE NoRRls PETERS co., wAsmNcraN. nA c PATENT OFFICE.

JOHN DEMPSTER WHYTE, OF MANCHESTER, ENGLAND.

MEANS FOR TWISTING AND CABLING- YARNS.

Specification of Letters Patent.

Patented Aug. 30,191.0.

Application led November 9, 1909. Serial No. 527,082.

To all whom it may concern:

Be it known that I, JOHN DEMISTER VHYTE, a subject of the King of GreatBritain and Ireland, residing at 73 Acomb street, Greenheys, Manchester,in the county of Lancaster, England, textile engineer, have invented newand useful Improvements in Means for Twisting and Cabling Yarns, ofwhich the following is a specification.

My invention relates to improvements in apparatus for performingsimultaneously on one twisting frame two twisting operations which areusually done on separate frames at separate times with a winding processbetween them.

Usually in cabling yarns, for example in making sixcord thread, two endsof single yarn are first twisted together on one twisting frame, thensecondly three of those twisted twofolds are wound together on adoubling-winding machine, and thirdly those three twisted twofolds aretwisted together, making one sixcord thread.

According to my invention, the two ends of single yarn are wound in copform and are twisted together while they are being unitedly withdrawnfrom the cop on a rotating spindle. IVhile they are being so withdrawnby and rollers toward the middle of the frame (the reverse way from thatwhich is usual in ordinary twisting frames) three of them are guided ashereinafter described back to and through the rollers (the usual way) toan ordinary cabling spindle. Thus in one operation three strands ofyarns, each composed of two singles, are being twisted individually intotwofolds, and at the same time are being twisted collectively into onesixcord. In the following explanation of my method of accomplishingthis, reference is made to three twofolds as cabled into sixcord, but itwill be understood that any other relative numbers of strands fortwisting or cabling may be similarly arranged for. The yarns have beenwound as is usual, two ends together, but, for my purpose, on amachinewinding into long and large cop form on pirn bobbins or tubes. Ontheir withdrawal from o the delivery twisting spindles upon which theyare placed, they pass through a tension device, hereinafter described,which does not retard their free passage forward therefrom, while iteffectively confines the twist to the unchanging i definite lengthbetween that appliance an passed through the the nip of the rollers,thereby insuring perfect uniformity of twist. And in order that myinvention may be fully understood I have attached drawings hereto towhich I will refer in the following detailed description of myinvention.

Figure 1 is a diagram showing my invention for cabling three twofoldsinto sixcord. Fig. 2 is a view on an enlarged scale of a spindlecarrying a cop of two fold yarn. Fig. 3 is a sectional view of amodified tension device. Fig. 4 is a plan of Fig. 3. Fig. 5 shows inplan view a part of the stop motion for the spindles. Figs. 6 and 7 showrespectively in elevation and plan another portion of the stop motion.Fig. 8 shows the method of putting tension on the thread. Figs. 9, l()and 11 also show detail parts of the stop motion.

As shown in the diagram lFig. l, for cabling three two folds into sixcord, the spindle rail a carries three spindles b Z) b having each alarge cop of doubled yarn, and also an ordinary cabling spindle c. Anyform of suitable spindle and footstep bearing may be used. Any suitablenumber of such combination of 4 spindles may be used in a frame as willbe understood. Secured to each spindle b is a tube d the three tubespassing through a cut out recess in the ring rail e, the tubes extendingupward from the fixed pulley f, and being of sufiicient diameter andlength to inclose the pirn of yarn g asshown in Fig. 2. In case of verylong tubes the tube may be additionally supported by an upper bearing.Driving contact of the pirn g with the spindle is insured in anysuitable manner such as by pegs g engaging with recesses in the bottomof the pirn. A tension device for the two fold yarn is provided by aremovable conical cap d held on to the tube d by pins d2 passed throughvertical slots and occupying recesses cl3, the initial rotation of thespindle causing the cap to partly rotate and sending the pins to oneside or other of the recesses cl3 so that the cap cannot fly off. Theyarn is threaded in the loop 7L and under and over any desired number oftension lingers h around in surface contact with the cap and up to theeye h2 secured to the top of the cap in line with the vertical axis ofthe spindle.

A modification of the tension device is shown in sectional elevation inFig. Sand in 1 plan view in Fig. 4. The tube din this case is providedwith a flat cover Z4 with a central hole d5. Hinged to the top of t-hetube is a wire c2 secured to the cover Z4 and extending across the coverand over the hole d5. The wire at the side of the tube (l opposite tothe hinge is bent downward and returns to the center of the cover and isthere turned up and formed into an eye Z6 above the central hole Z5 andin line with the vertical aXis of the spindle. The cover Z4 is securedto the tube cl by snapping the bent doubled end of the wire into arecess in the flange of the tube or in any other suitable manner. Thecover is cut away to form fingers d? and the doubled yarn is fed fromthe pirn through the hole (Z5 and over and under any suitable number ofthe lingers (ZT and into a notch cls and then underneath the lia-nge atthe top of the tube (l, out through another notch Z8 and is thenthreaded through t-he eye (Z6. Notches (Z8 may be formed at variousintervals in the flange to wind the threads more or less around theflange. The passing of the yarn around and in contact with the flangeinsures that the twist will not pass down beyond where the yarn emergesfrom the final notch d8. Regularity of twist is thereby insured. Theyarn passes from the eye 7b2 in the center of the conical cap, or fromthe eye d as in Figs. 3 and 4, to the drawing rollers z' z' the lowerone of which is driven in the usual or any convenient manner. Afterpassing through the rollers z' z' and receiving the twist by therevolution of the spindles the separate twisted two folds are passedaround guide pulleys j and are all three then directed around anotherguide pulley y, again through the rollers z' i which now act as deliveryrollers, to the ordinary cabling spindle c the three twisted two foldsbeing thus cabled into siX cord, as shown in Fig. l. Before passing thetwisted twofolds again through the delivery rollers 'L' z' they may bekept in equal tension by each two fold being conducted through an eye 7cand up through a separate guide eye /c for each twisted twofold, carriedby a sleeve 702 free to slide on a rod 7c3 as shown in Fig. 8. The guideeye c is weighted to suit the strength of the yarn which is beingtwisted, so that the three twisted twofolds as they are gatheredtogether and carried to and over a light carrier pulley m to be thenceconveyed back through the delivery rollers z' z' to the cabling spindleare equal in tension. These guideeyes la have an available length ofrise or fall, each independently of the other, so that any difference inthe length of three twofolds behind the rollers will not affect theequality of tension as each weighted guideeye le provides separatetension. Preferably a small cord m extending from the stem of theguide-eye 7c up and over asmall runner m2 on the top of the supportingrod `contact with the wiper shaft.

hangs down behind the same with a small counterbalancing weight m3thereon. Small washer-shaped weights m4 on the said cord aretransferable from the guide-eye end of it to the other weighted end, orvice versa, so that the tension may be easily varied, the weight on eachtwofold being reducible from anything down to mil.

It is necessary that there shall be a stopmotion to stop the fourspindles simultaneously when any one of the three twofolds or the onesiXcord shall break. I provide a pivoted dropwire boX n of the ordinarytype see Fig. 6, but long enough to serve the four spindles and whichshall have one drop-wire 0 for each spindle. Each dropwire hangs on alight wire lever 20, shown broken in length in the figure, and carryinga weight or counterpoise g and which is suitably pivoted at p on a smallstand r in such a position that one end of it holds up the drop-wire outof the path of a rotating wiper shaft 0" so long as the other end bearsagainst the unbroken thread. If any one of the four threads should breakthe end of the lever j) bearing against it will swing downward so farthat its drop-wire drops into the path of the wiper shaft-s rotationwhich then tilts the drop-wire box a.

The light wire lever p may be arranged in front of the rollers @'71 asshown in Fig. l1. The lever p is pivoted at p2 and on the rear end of itis-hooked the drop wire o, the yarn passing through an eye formed in thefront part of the lever. In case of breakage of the yarn the rear end ofthe lever p falls and with it the drop wire which then comes into Iprovide means shown in Figs. 9 and l() whereby the drop wires may betemporarily held up out of the path of the wiper shaft while therestarting of the spindles is taking place. As shown in Fig'. l0 thedrop wires are formed double at the lower end and bent out at an angle.Beneath the bent out part of the drop wire is placed a wire s resting ona finger s the lingers being all secured to a bar s2 which in turn isconnected to a pivot ed lever' s3. By operating the pivoted lever thedrop wires can all be lifted. The tilting of the drop wire boX as abovedescribed actuates a pivoted lever t (Figs. 2 and 6) by means of a rodattached to the drop wire box n to remove a projection t2 away from atooth or ledge t3 on the boss of a lever u extending to the front of themachine. The lever u is loosely mounted on a shaft t4 and on this sameshaft are loosely mounted four levers 5 to each of which is secured afork u embracing the driving cord a3 of the spindle. A bar u2 secured tothe lever u passes beneath the four levers 255 and normally raises themto direct the driving cord a3 on to the fast pulley f of the spindle,but when the lever t is removed as described, the lever u and the fourlevers 255 drop by gravity and the forks u shift the driving cord ugfrom the fast to the loose pulley QJ of the spindle. Brakes o secured bya spring to each of the levers t5 are applied to the tubes @Z to effecta. prompt stoppage of the spindles. IVhen the lever u is lifted by thehand, all four levers, t5 are also lifted by the bar u2 and the drivingcords are shifted on to the fast pulleys f and the lever t returns bygravity to again secure the lever u. Each of the fork levers t5 may havea light rod t (see Fig. 5) attached to it whereby any one fork lever maybe lifted independently for the purpose of putting some twist into anewly pieced thread before starting all four spindles.

The tilting of the drop wire box is also arranged to stop the four topdelivery rollers z' so that no delivery of yarn takes place while thespindles are stopped, in the manner shown in Figs. 6 and 7 The toprollers rest upon the driven long lower roller rotating as usual in awater bath Z. In connection with each top roller i I provide a frame ioloosely pivoted at its rear end on a rod fw. The side members of theframe at the front ends are slotted as more clearly shown in Fig. 6.Each frame fw is connected to the drop wire box by a rod 'L02 and whenthe drop wire box is tilted the front part of the frame is lifted andthe noses fw3 come into contact with the axles 2 of the rollers z' andthrust the rollers backward in the gaps formed in the fixed brackets yand so remove the top rollers from driving contact with the lower rollerand stop the delivery of yarn.

I declare that what I claim is.

l. As means for performing twisting and cabling operationssimultaneously in one twisting frame a plurality of delivery spin-` dlescarrying yarn in cop form, tubes surrounding the cops on the spindles, atension device on the tubes through which the yarn passes from the cops,drawing rollers through which the yarn is conducted from the tensiondevice whereby an unvarying amount of twist is imparted to the yarn,means to combine the twisted yarns, a cabling spindle and deliveryrollers to conduct the combined twisted yarns to the cabling spindlesubstantially as described.

2. In combination in a twisting frame, a plurality of delivery spindlescarrying yarn in cop form, tubes surrounding the cops on the spindles, atension device on the tubes through which the yarn passes from the cops,drawing rollers through which the yarn is conducted from the tensiondevice, means to combine the twisted yarns from the delivery spindles, acabling spindle, delivery rollers to conduct the combined twisted yarnsto the cabling spindle and means for vdriving the spindles and forstopping the spindles and drawing and delivery rollers on the breakageof a thread, substantially as described.

3. In combination in a twisting frame a pluralit of delivery spindlescarrying yarn in cop orm, tubes surrounding the cops on the spindles, atension device on the tubes through which the yarn passes from the cops,drawing rollers through which the yarn is conducted from the tensiondevice, means to combine the twisted yarns from the delivery spindles, acabling spindle, delivery rollers to conduct the combined twisted yarnsto the cabling spindle, means for separately guiding and putting equaltension on each twisted yarn and conducting the several twisted yarns tothe delivery rollers and the cabling spindle, and means for driving thespindles and for stopping the spindles and rollers on the breakage of athread substantially as described.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

JOHN DEMPs'rER WHYTE.

Witnesses: A

J osHUA ENTwIsLn, NORMAN KIERNAN.

